名校
1 . 已知
,若函数
有两个不同的零点,则a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a093f66705f95dc75bcb89e00ac8258.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知函数
,
,则下列命题不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e25d0373387c74f4a145f5077381a975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
A.![]() | B.![]() ![]() |
C.存在实数![]() ![]() | D.![]() ![]() |
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2024-05-14更新
|
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2卷引用:江西省鹰潭市2024届高三第二次模拟考试数学试卷
解题方法
3 . 在满足
,
的实数对
中,使得
成立的正整数
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0ebbc2bb3d8770fa0561206170afac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d6bfca747c058b73394a3db1b070c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f832cf6c24ab279685f52e36fb11011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2764f439a9af5d0e7c3b10f90e9899ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.22 | B.23 | C.30 | D.31 |
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解题方法
4 . 设m为实数,函数
.
(1)当
时,直线
是曲线
的切线,求
的最小值;
(2)已函数
有两个不同的零点
,
(
),若
,且
恒成立,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc47f68fce2fd5ba697a2f58adfb033.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8493a0cd10d3d0399173c04163740a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
(2)已函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2b5e302a911b0f368aa488f5423f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ee586f2c15524e1b0754aea925f4cb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2023-09-03更新
|
361次组卷
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3卷引用:江西省鹰潭市2023届高三高考一模数学(理)试题
5 . 已知
,
,
,其中e为自然对数的底数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287697df6a9afad5bf414306e189df74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd4307f8533e139b497b299bb1bdd91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1e6b3b4b758c25264d5e759650c419.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-09-03更新
|
571次组卷
|
3卷引用:江西省鹰潭市2023届高三高考一模数学(理)试题
名校
解题方法
6 . 已知函数
,且
,则实数a的取值范围( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a12f217f7a35c92ce5f4edde9a79e157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/426c2c56101d9db66fcb52c5cf5d4fd1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-09-03更新
|
897次组卷
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4卷引用:江西省鹰潭市2023届高三高考一模数学(理)试题
江西省鹰潭市2023届高三高考一模数学(理)试题江西省全南中学2024届高三上学期开学考试数学试题黑龙江省实验中学2023-2024学年高三上学期第二次月考数学试题(已下线)阶段性检测3.3(难)(范围:集合至立体几何)
名校
解题方法
7 . 已知函数
,
.
(1)若
与
的图象恰好相切,求实数a的值;
(2)设函数
的两个不同极值点分别为
,
(
).
(i)求实数a的取值范围;
(ii)若不等式
恒成立,求正数
的取值范围(
为自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57be8b445a2427633017715c57075e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a882ca37ba6055dbbfc3b82ef870c1d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15c2171c1be9ec394494ad822a048d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
(i)求实数a的取值范围;
(ii)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d22c4a96f39d56f304cc3363e32060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797bbd18359c9a29842b39109b3a0aac.png)
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2023-06-03更新
|
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4卷引用:江西省贵溪市实验中学2024届高三上学期11月第二次模拟检测数学试题
名校
8 . 函数
的单调递增区间为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca339f062c6a8af4251163a78947cc5f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 设函数
其中
,
.若
,
,且相邻两个极值点之间的距离大于
,
,设
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2eb5062aab6b77e9f88d8e201daf45c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a61aaa4794ba51dc328aedbbc47c35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b92ad017623352f3bb7963dc9364c058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5b94a19a4cacf1eb3f6fe823c231ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1408a4c8713f3b5d1f81666ba2df88b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b538da8582fb32f6d40c6754bda8ec.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
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2023-05-16更新
|
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3卷引用:江西省贵溪市实验中学2024届高三上学期11月第二次模拟检测数学试题
名校
10 . 设定义在
上的函数
满足
,则函数
在定义域内是______ (填“增”或“减”)函数;若
,
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d269c589e8b3446d57a30febb1b92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab11476ca381bc700347b9e48028a60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6b3b85c0121f9e93374d4bd32ea065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0029632b6d23d21463e3d775d548e1f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2023-05-05更新
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